The post office were led to mistakenly believe that EXO's Baekhyun had lost his ID when in fact, the idol didn't lose anything.
On September 23, Baekhyun wrote on his Instagram, "I got a call from the post office. They told me, 'Come pick up your lost item~' when I didn't lose anything...when I went to pick it up, it was a pencil case..and inside it is my ID loooool," along with a picture showing a pencil case which appears to belong to a fan.
Netizens are guessing that the fan lost the pencil case and the post office happened to find it, discovering what looks to be Baekhyun's ID inside. What the post office didn't realize is that the ID actually wasn't Baekhyun's but just a close replica that an EXO-L made. This EXO-L clearly has a bias towards Baekhyun!